It's only a little above normal. Normal is between 60 to 100 beats per minute. So 59 beats per 30 seconds would mean your heart is beating 9 times more than "normal." How much do you exercise? The more you exercise the lower your heart rate. Were you doing a lot before you took your heart rate? Are you up tight or nervous about things? That could increase your heart rate.

I think you are fine but if it bothers you, you can talk to your doctor about it.